Article ID: 909944 - View products that this article applies to.
When you try to run a game on a Microsoft Windows XP-based computer that is using a dual-core processor, game performance may be poor. For example, you may experience any one of the following symptoms:
These performance issues may sometimes occur if the game was not designed for use on computers that use dual-core processors. The performance issues occur because the game cannot correctly capture timing information.
To resolve this problem, follow these steps, as required:
If you are a developer who is using the RDTSC (Real Time Stamp Counter) instruction to compute timing, visit the following Microsoft Developer Network (MSDN) Web site for information about the QueryPerformanceCounter function:
Technical support for x64-based versions of Microsoft WindowsYour hardware manufacturer provides technical support and assistance for x64-based versions of Windows. Your hardware manufacturer provides support because an x64-based version of Windows was included with your hardware. Your hardware manufacturer might have customized the installation of Windows with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your x64-based version of Windows. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.
For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:
http://www.microsoft.com/windowsxp/64bit/default.mspxFor product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:
Article ID: 909944 - Last Review: December 12, 2005 - Revision: 2.4